fix: stdenv system error

Reviewed-on: #22
Co-authored-by: vickydotbat <vickydotbat@tutamail.com>
Co-committed-by: vickydotbat <vickydotbat@tutamail.com>

.gitea/workflows/sync-wrappers.yml

@@ -2,6 +2,9 @@
 # main. Maintenance automation (not artifact publishing), so it is allowed on a
 # main push under the D7 trigger standard. Requires BOT_TOKEN: the gitea-bot
 # org token (content+PR write to the consumer repos; never committed).
+#
+# Consumer drift checks run only after their sync PRs merge to main. They must
+# not run on the sync PR itself, which can create recursive cross-repo checks.
 name: sync-wrappers
 
 on:

README.md

@@ -91,6 +91,8 @@ publish event is a `v*` tag (see `sow-docs/runbooks/ci-trigger-standard.md`).
 - `publish-image.yml` — manual `workflow_dispatch` break-glass republish.
 - `sync-wrappers.yml` — on a `main` push that touches `wrappers/`, auto-PR the
   canonical wrappers to the consumer repos in `wrappers/consumers.txt`.
+  Consumer drift checks run after those PRs merge to `main`, not on the PRs
+  themselves, to avoid recursive cross-repo checks.
 
 ## Consumers
 

docs/superpowers/plans/2026-06-21-crucible-build-parity.md

@@ -1439,7 +1439,7 @@ Edit `sow-assets-manifest/flake.nix`. Add the input:
 Change the outputs signature to `{ self, nixpkgs, sow-tools }`, delete the entire `crucibleVersion` / `crucibleArch` / `crucibleHashes` / `crucible = pkgs.stdenvNoCC.mkDerivation { ... }` block, and replace the `++ [ crucible ]` line in `packages` with:
 
 ```nix
-              ++ [ sow-tools.packages.${pkgs.system}.crucible ];
+              ++ [ sow-tools.packages.${pkgs.stdenv.hostPlatform.system}.crucible ];
 ```
 
 (`forAllSystems` here already passes `pkgs`; `pkgs.system` is available.)